A late 18th Century English duplex by Frodsham in a gilt metal consular case. Full plate gilt keywind fusee movement. Harrison's maintaining power. Engraved cock with diamond endstone, polished steel regulator, the curb pins operating through a slot in the cock. Plain three arm polished steel balance with blue steel spiral hairspring. Duplex escapement, large brass escape wheel, pivots with endstones. White enamel dial with subsidiary seconds, Roman numerals, blue steel seconds hand, gilt hands. Gilt metal consular case, gilt oval pendant and bow. Wound and set through the sprung, signed and numbered gilt metal cuvette.